Of the 150 psalms that constitute the largest book in the Bible, Moses penned only one, so we approach Psalm 90 with particular interest. What was so significant about the prayer of this one who spoke face to face with God (Exodus 33:11), that his prayer would later be included in this important collection?
The psalm is introduced as “A prayer of Moses, the man of God,” telling us the kind of literature this is and identifying its author. Verses 1-2 focus on the character and sovereignty of God. He is transcendent (“even from everlasting you are God”), He is the Creator of all (“…you gave birth to the earth and the world”), and at the same time He is intimately involved with His creation (“You have been our refuge” [Heb., maon]). Because of who He is identified to be in verses 1-2, it is inarguable that He has the right to deal with His creation as the next verses describe.